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Finding the Fourth Proportional to 239,007.69, 358,573.05 and 70,521.21

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Solution

The fourth proportional to 239,007.69, 358,573.05 and 70,521.21 is: 105,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,007.69 : 358,573.05 = 70,521.21 : x
  2. Step 2: Convert to fraction form
    239,007.69/358,573.05 = 70,521.21/x
  3. Step 3: Cross multiply
    239,007.69x = 358,573.05 × 70,521.21
  4. Step 4: Simplify right side
    239,007.69x = 25,287,005,359.39
  5. Step 5: Solve for x
    x = 25,287,005,359.39/239,007.69
  6. Step 6: Final answer
    x = 105,799.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.